/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.confignode.manager.partition.heartbeat;

import org.apache.iotdb.commons.cluster.RegionStatus;
import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.util.Objects;

public class RegionStatistics {

    private RegionStatus regionStatus;

    public RegionStatistics() {
        // Empty constructor
    }

    public RegionStatistics(RegionStatus regionStatus) {
        this.regionStatus = regionStatus;
    }

    public RegionStatus getRegionStatus() {
        return regionStatus;
    }

    public RegionStatistics deepCopy() {
        return new RegionStatistics(regionStatus);
    }

    public RegionHeartbeatSample convertToRegionHeartbeatSample() {
        long currentTime = System.currentTimeMillis();
        return new RegionHeartbeatSample(currentTime, currentTime, regionStatus);
    }

    public void serialize(OutputStream stream) throws IOException {
        ReadWriteIOUtils.write(regionStatus.getStatus(), stream);
    }

    // Deserializer for snapshot
    public void deserialize(InputStream inputStream) throws IOException {
        this.regionStatus = RegionStatus.parse(ReadWriteIOUtils.readString(inputStream));
    }

    // Deserializer for consensus-write
    public void deserialize(ByteBuffer buffer) {
        this.regionStatus = RegionStatus.parse(ReadWriteIOUtils.readString(buffer));
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        RegionStatistics that = (RegionStatistics) o;
        return regionStatus == that.regionStatus;
    }

    @Override
    public int hashCode() {
        return Objects.hash(regionStatus);
    }

    @Override
    public String toString() {
        return "RegionStatistics{" + "regionStatus=" + regionStatus + '}';
    }
}
